Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation Of Revenue [Line Items]
Type of Cost, Good or Service [Extensible List]	us-gaap:ShippingAndHandlingMember	us-gaap:ShippingAndHandlingMember	us-gaap:ShippingAndHandlingMember
Cost of sales	$ 387,442	$ 389,590	$ 372,481
Selling Expense [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	9,700	8,200	8,900
Cost of Sales [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	$ 5,700	$ 6,000	$ 6,100